Lymphotactin exists in two conformations, which are in equilibrium.
[R. L. Tuinstra, F. C. Peterson, S. Kutlesa, E. S. Elgin, M. A. Kron, and B. F. Volkman.
Proc. Natl. Sci. U.S.A
. 105:505
7–
5062, 2008, Fig. 2A.]